Concept explainers
(a)
Interpretation:
Identification of the element “X” and write its chemical symbol which forms ion
Concept Introduction:
Atoms are composed of three types of particles called subatomic particles. They are as follows:
- Protons: Positively charged particles in an atom.
- Neutrons: Neutral charged particles in an atom.
- Electrons: Negatively charged particles in an atom.
The neutral atom has equal number of protons and electrons. Gaining or loosing of electrons of an atom forms ion.
Negative charged ions are formed by the gaining of one or more electrons and it has more electrons than protons.
Positive charged ions are formed by losing one or more electrons and it has more protons than electrons.
(b)
Interpretation:
Identification of the element “X” and write its chemical symbol which forms
Concept Introduction:
Atoms are composed of three types of particles called subatomic particles. They are as follows:
- Protons: Positively charged particles in an atom.
- Neutrons: Neutral charged particles in an atom.
- Electrons: Negatively charged particles in an atom.
The neutral atom has equal number of protons and electrons. Gaining or loosing of electrons of an atom forms ion.
Negative charged ions are formed by the gaining of one or more electrons and it has more electrons than protons.
Positive charged ions are formed by losing one or more electrons and it has more protons than electrons.
(c)
Interpretation:
Identification of the element “X” and write its chemical symbol which forms
Concept Introduction:
Atoms are composed of three types of particles called subatomic particles. They are as follows:
- Protons: Positively charged particles in an atom.
- Neutrons: Neutral charged particles in an atom.
- Electrons: Negatively charged particles in an atom.
The neutral atom has equal number of protons and electrons. Gaining or loosing of electrons of an atom forms ion.
Negative charged ions are formed by the gaining of one or more electrons and it has more electrons than protons.
Positive charged ions are formed by losing one or more electrons and it has more protons than electrons.
(d)
Interpretation:
Identification of the element “X” and write its chemical symbol which forms
Concept Introduction:
Atoms are composed of three types of particles called subatomic particles. They are as follows:
- Protons: Positively charged particles in an atom.
- Neutrons: Neutral charged particles in an atom.
- Electrons: Negatively charged particles in an atom.
The neutral atom has equal number of protons and electrons. Gaining or loosing of electrons of an atom forms ion.
Negative charged ions are formed by the gaining of one or more electrons and it has more electrons than protons.
Positive charged ions are formed by losing one or more electrons and it has more protons than electrons.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Bundle: General, Organic, and Biological Chemistry, 7th + OWLv2 Quick Prep for General Chemistry, 4 terms (24 months) Printed Access Card
- Which statements are true regarding the chemical formula Pb(NO3)4. Select the three that apply. The formula unit has a ratio of four nitrate ion for every lead (IV) ion. Each Nitrogen atom is bonded with three oxygen atoms Formula unit contains more lead (IV) ions than nitrate ions. Each nitrate ion is bonded with four lead (IV) ions. Each formula unit has total of seventeen atomsarrow_forwardDraw the electron dot structure of each atom and of the ion that it is expected to form. Explain how I would know how many electron dots to put and where. Sodium Zinc Arsenic Krypton Barium Radium Lithium Calcium Cobalt Ironarrow_forwardApply the formula for the differences in electronegativities, for the following molecules, and define whether they are polar covalent, nonpolar covalent or ionic. Taking into account that: Non-polar covalent: greater than or equal to 0 but less than 0.7 Polar covalent: greater than or equal to 0.7 but less than 1.7 ionic: greater than 1.7 A)NO B)KCI C)F2 C)AsOarrow_forward
- In 1895 a student prepared three coordination compounds of chromium with the same formula CrCl2(H2O). The table below gives the color of each compound along with the number of CI ions in solution per formula unit of the compound. Complete the table by filling in the modern formula for each compound. Metal chromium has a coordination number of 6 in these compounds and an oxidation state of +2. Compound (a) Color Bright blue (b) Light green (c) Yellow Part 1 of 3 Modern formula for (a): х G CI Ions in Solutions per Formula Unit 2 1 0 00 olaarrow_forwardBased on the following word description write a formula for each of the indicated substance: a compound who's molecules contain twice as many oxygen atoms as carbon atomsarrow_forwardConsider these compounds: A. PbBr, B. MnS C. Ag,CO3 D. AIPO, Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that magnesium fluoride is more soluble than and magnesium fluoride is less soluble than| It is not possible to determine whether magnesium fluoride is more or less soluble than by simply comparing Kgp values.arrow_forward
- Answer the following questions about compound A, represented in the given ball-and-stick model. In a ball-and-stick model, each black sphere represents a carbon atom and each white sphere represents a hydrogen atom. Part: 0 / 4 Part 1 of 4 Give the IUPAC name for compound A. ☑arrow_forwardLook up the valence electron configuration, covalent atomic radius, effective nuclear charge, first ionization energy and Pauling electronegativity in Chapter 8 (tables are attached). Examine the above data and answer the following questions. a) Explain why some of the elements like TI and Pb on the lower left of the p block are metallic. b) Explain why some of the elements like C, Si in the center of the p block form covalent bonds. Explain why these bonds formed by the network of these elements (as studied in Chapter 25) tend to be unreactive. c) Explain why the noble Group 8A elements are highly unreactive gases. d) Explain why some elements like F, CI, Br etc, on the upper right of the p block are highly reactive nonmetals.arrow_forwarda) Identify the following as element (atomic or molecular), compound or mixture. b) Explain your reasoning and draw a sample of these substances containing 5 particles of that particular material. c) What would be the mass of 5 particles of that particular material? Show your work! H20 N2 C2HSOH Iodine gasarrow_forward
- Answer the following questions about compound A, represented in the given ball-and-stick model. In a ball-and-stick model, each black sphere represents a carbon atom and each white sphere represents a hydrogen atom. Part: 0 / 4 Part 1 of 4 A Give the IUPAC name for compound A. ☑ كarrow_forwardWhat structure is labeled B? B A 台 G H Farrow_forwardDefine the following terms: a. hydrocarbon b. hydrophilic c. hydrophobic d. functional group e. R grouparrow_forward